Chevrolet HHR key fob battery
Every model year listed for the Chevrolet HHR has a proven battery. The most common answer is CR2032. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2006Remote (separate)
CR2032
FCC ID KOBGT04AOwner's manual: uhs-hardware.com and assets.gm.com (checked Nov 2, 2026)
Manual text: “Use one three-volt, CR2032, or equivalent, type battery.”
Find CR2032 on Amazon - 2007-2011Remote (separate)
CR2032
FCC ID KOBGT04ATwo sites agree: uhs-hardware.com and americankeysupply.com (checked Nov 1, 2026)
Find CR2032 on Amazon
Changing the battery
Separate remote fob
- The remote is a small standalone unit. You will not need to touch the ignition key at all.
- Look for a screw on the back or a notch on the edge. Remove the screw if present, then twist a coin in the notch to split the case.
- Lift the old coin cell out and press the new one in with matching orientation.
- Reassemble and test from a short distance.
A CR2032 is 20 mm across and 3.2 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.
Keep spare coin cells away from small children. A swallowed coin cell can burn the throat within hours; if it happens, go to an emergency room at once.